[Jacques Reed]

Meant to post a photo of the replaced inner bearing cup on the CMP diff in previous post.

I replaced the crown and pinion at the same time with NOS items. Note the thin copper plating on the pinion. I believe this was done from the factory to aid bedding in of the teeth on the two items.

I found many years ago that often the crown and pinion are highly pitted in the area immersed in oil if they have not moved for decades. As unlikely as this may seem, this is because bacteria in the oil create an acid that attacks the immersed parts.
So those "rare" "hard to find" Ebay items are often just overpriced scrap metal. Caveat emptor!

Regards,